Car-wheel.



G. T. POTTER, G. B. PRITGHARD & 0. L. MARQUEUI.-

CAB. WHEEL.

APPLIUATION FILED DEO. 9, 1911.

Patented Apr. 1', 1913.

0 s l Z MEME. ,WM 5.2

20Min-L UNITED sTATEs PATENT o EEroE GEORGE T. POTTER, OF CONNEIJLSVILLE, AND CARE B. PRITCHARD, OF EVERSON, PENNSYLVANIA, AND OSCAR L. MARQUET, OF WEIJISBURG, WEST VIRGINIA.

CAR-WHEEL.

Specification of Letters Patent.

Patented Apr. 1, 1913.

To @ZZ whom t may concern.'

Be it known that we, GEORGE T; POTTER, a resident of Connellsville, in the county o-f Fayette and State of Pennsylvania., CARL B. PRTTGHARD, a resident of Everson, in the county of Fayette and State of Pennsylvania, and OSCAR L. MARQUET, a resident of lVellsburg, inthe county of Brooke and State of YWest Virginia, all citizens of the United States, have invented a new and Improved Car-Wheel, of which the following is a full, clear, and exact description.

The present invention vrelates more particularly to the form of car wheel disclosed in Letters Patent of the United States granted to Carl B. Pritchard and George T. Potter under date of January 2, 1912, and bearing No. 1,013,513, to which application for patent cross reference is here made.

The principal objectsV which the present invention has in view are: to provide a cover for the lubricant-box, which may be quickly and readily removed to expose the major portion of the interior of said box; to provide delivery passages for the lubricant to guide the same laterally over the journal bearing of the axle whereon the` wheel is mounted; and to simplify, economize and strengthen the construction shown in the previous application referred to.

Reference is to be had to the accompanying drawings forming apart of this specification, in which similar characters of reference indicate corresponding parts in all the views, and in which- Figure 1 is a side view of a car wheel constructed and arranged in accordance with the present invent-ion; Fig. 2 is a vertical cross section of a wheel constructed and arranged in accordance with the present invention; Fig. 3 is a detail view, on an enlarged scale, showing a fragment of the wheel, the side of the lubricant box, and fastening devices therefor; Fig. 1 is a bottom view of the plunger employed by us for feeding the lubricant; and Fig. 5 is a section taken on the line 5 5 of Fig. 4f.

In the former application referred to, the wheel is shown as provided with a somewhat diminutive box or receptacle for a heavy grease lubricant, having loosely mounted therein a feed plunger and a spring for actuating the same. Broadly, the elements referred to are contained in the construction shown in the present application,

where the chamber 10 is enlarged to extend from the axle-bearing openings of the hub to the rim of the wheel. Also, in the present disclosure, the plunger 11 is provided with a cup-like receptacle 12 to hold the spiral spring 13. The upper end of the spiral spring is held in line by a boss 14, which is cast on the inner side of the chamber 10, and of the metal forming the rim of the wheel.

The chamber 10, when in use, is preliminarily filled with suitable lubricant, which for this class of wheels is preferably a heavy grease. To deliver the grease to the axle2 the chamber is provided, in the present invention, withtwo openings 15, 15, the openings 15, 15 being separated lengthwise the axle by a spreader 16. The spreader 16 is in effect an inverted wedge-shaped ridge, the sides -whereof are inclined, to spread the grease from the center of the chamber 10 toward t-hc sides thereof and toward theends of the journal bearing of the wheel. As auxiliary passages to the openings 15, there are provided grooves 17, 17 The grooves 17 are cast or otherwise formed in the interior of the hub of the wheel, and are extended for one-quarter of the circumference of the axle about the said h-ub. The grooves are extended to the ends of the hubs, and in this manner distribute the grease throughout the length of the journal bearings. It will be understood that the slight heat of friction caused by the rotation of the wheel softens the grease suiiiciently to cause the same to flow into the grooves, particularly when urged thereto by the pressure of the spring 13 upon the plunger 11.

The chamber 10 is formed by casting with the metal constituting the body of the wheel, the back wall 18, the side walls, and the grooved front edges 20, 20. Within the grooves of the edges 20 are extended guideflanges 21, 21. The flanges 21, 21 control the movement of the cover 22 when the same is placed over the opening of the chamber 10.

The cover 22 is locked in closed position by means of a spring 23. To coperate with the spring 23, the said cover is provided with inclined lugs 27 over which the ends of the spring 23 rides and behind which the said ends fall when the cover is in position.

During the filling of the chamber 10 with lubricant, the plunger 11 is held up by any suitable tool or device such as a clamp. After the chamber 10 has been supplied With lubricant and prior to releasing the plunger 11, the fen der plate 2&1 is placed in position in the groove provided for the guide iianges 21 of the cover 22. To avoid the plunger supporting tool, the plate 211- is provided With the slot 25 through Which the tool protrudes when the plate is adjusted. lVhen noW the plunger is released, the plate 24 prevents the lubricants emission laterally from the chamber. When the cover 22 is adjusted, the plate 241 is supported thereby. It Will now be found that, as the Wheel is rotated, the lubricant is forced dovvn through the passage to the openings 15, past the spreader 16 and into the grooves 17, to lubricate the entire bearing surface of the journal.

To readily ascertain the condition of the supply of lubricant, We have provided the chamber 10, With a slot 26, and the plunger 11 with a lug 28. The lug 28 extends slightly beyond the Wall of the chamber 10 and indicates the position of the plunger and thus indicates the' supply of lubricant.

Having thus described our invention, We claim as new and desire to secure by Letters Patent In combination, a car Wheel having a journal bearing and a box-like open-sided chamber provided vvith a plurality of delivery openings in communication With the journal bearing of said Wheel; a removable plunger equal in area to the transverse dimensions of said chamber; a removable spiral spring interposed between said plunger and the end of said chamber, to move said plunger toward the bottom of said chamber; a plate covering the side opening of said chamber and having a slot disposed radial to said Wheel; a cover for said plate and slot thereof; and means for locking in position said cover.

In testimony vvhereof We have signed our names to this specification in the presence 0f tvvo subscribing Witnesses.

GEORGE T. POTTER. CARL B. PRITCHARD.

Vitnesses to the signatures of George T.

Potter and Carl B. Pritchard:

I. T. CASEY, P. J. MULRoY.

In testimony whereof I have signed my name to this specification in the presence of tvvo subscribing Witnesses.

OSCAR L. MARQUET.

Vitnesses to the signature of -Oscar L. Marquet: v

L. M. GnIMEs, F, E. MARQUET.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

